“The International Emergency Economic Powers Act, passed in 1977, grants the president broad authority over economic transactions, and a wide range of abilities to deal with “any unusual and extraordinary threat,” stemming in whole or in part from foreign sources.
Presidents, including Trump’s predecessor Joe Biden, have used the law to impose economic sanctions on other countries, including on Russia after it launched its 2022 war on Ukraine.
But the closest a president has come to citing a national emergency to impose tariffs was when President Richard Nixon used a different law — the Trading with the Enemy Act of 1917 — to levy a temporary universal tariff on all imports in 1971.
Trump justified his new tariffs Saturday by pointing to “the major threat of illegal aliens and deadly drugs killing our Citizens, including fentanyl,” which he claims Mexico, Canada and China are not doing enough to keep from coming into the United States.
But Bill Reinsch, a former Commerce Department official now at the Center for Strategic and International Studies, said Trump’s use of IEEPA to justify his trade actions “doesn’t really pass the red-face test,” setting the stage for a company or trade association whose members have been harmed by the action to sue.
“The question will be, can you find a judge who will write an injunction to stay the tariffs from going into effect,” Reinsch said. “And my prediction is that will be hard, because you’re asking a federal judge to essentially say, ‘I know more than the President does about what an emergency is.’ And I think judges are going to be reluctant to do that.”
That won’t stop a lawsuit from proceeding, most likely all the way to the Supreme Court, Reinsch said, but it could be years before there is a conclusion to the legal battle.
“The courts have historically upheld the president’s power to take emergency actions, especially when they are related to national security. But one important question is whether they will uphold the use of tariffs. In the past, [IEEPA] has only been used to impose sanctions,” said Tim Brightbill, a trade attorney at the law firm Wiley Rein in Washington, DC.
“While it is possible that companies or industry groups would seek an injunction, they probably face an uphill battle blocking the new tariffs,” Brightbill said.”
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“the U.S. effectively killed the WTO Appellate Body during Trump’s first term by blocking the appointment of new judges, leaving it without the ability to adjudicate disputes. And there’s little to suggest the Trump administration would abide by a WTO ruling even if the organization were able to issue one.”
https://www.politico.com/news/2025/02/03/trump-tariffs-legal-00202063